Means for spraying or projecting powder



March 21, 1950 KARK 2,501,279

MEANS FOR SPRAYING OR PROJECTING POWDER Filed Feb. 8, 1946 Patented Mar.21, 1950 MEANS FOR SPRAYING ORPROJECTING POWDER Charles Lazar Kark,Johannesburg, Transvaal, Union of South Africa Application February 8,1946, Serial No. 646,289 In the Union of South Africa January 17, 1946Claims. 1 I This invention relates to means for spraying or projectingpowder, and has particular reference to hand powder-sprays forintroducing medicated powders into body cavities, or applying powders tothe skin, surface wounds or the like.

One object of this invention is to provide a powder'projecting devicewhich is simple in construction, inexpensive to manufacture and easy tohandle and to clean. Another object of this invention is to provide suchdevice which enables the user to introduce or apply an exactlypredetermined quantity of the powder.

A powder projecting device according to this invention comprises a bodypart 'formed at its one end with a discharge orifice and means withinsaid body part providing a space for receiving a powder container orcartridge, said body part also providing a connection between saidorifice and the end of said space remote from said orifice; the devicealso comprising a cover member providing a tube arranged to project intosaid space and means for connecting said tube to means for blowing airthrough said tube. Preferably, the device also includes means forproviding an annular powder-tight seal between said cover member andsaid container-receiving means and surrounding the mouth of thecartridge-receiving space.

According also to this invention, a powder projecting device comprisesmeans having a recess for receiving a powder container or cartridge,said means providing a discharge orifice and a connection between saidorifice and the end of said recess remote from said orifice; said devicealso comprising means for blowing powder from such container throughsaid connection and out of said discharge orifice.

In a preferred form of this invention, the means for receiving saidpowder container consists of arholder which fits into the end of thebody part distant from said orifice and which provides a central bore oropen-ended recess of suitable shape to accommodate said container. Saidholder also provides at least one conduit which leads from a pointadjacent that end of said bore which is arranged to face the covermember and which is intended to accommodate the open end of the powdercontainer, to the other end of said holder which faces said dischargeorifice.

Preferably, several conduits are provided which are arrangedsymmetrically around said bore. Such symmetrical arrangement of theconduits enables the device to be used in any position without afiectingits emciency.

The bore or recess is preferably formed with an inner lip or othersuitable means for temporarily securing the powder container in apredetermined position.

The invention will be further described with reference to theaccompanying drawings} in which:

Fig. 1 is a partly sectioned elevation of a spray ing device.

Fig. 2 is a plan view of the holder of Fig. 1.

The spraying device comprises a body part I of generally'conical shape,the end 2 of which is shaped suitably for introduction into a bodycavity and is formed with a discharge orifice 3. The body part I ishollow and is formed at its end 4 opposite the discharge orifice 3 witha screw thread 5 for connection with the cover member 6. Adjoining saidscrew-threaded end 4, the body part provides a conical seat 1 for theholder 8. Said holder 8 is formed with a central bore 9 which isarranged to accommodate a pow der container or cartridge H]. IIindicates a flange which determines the position of the container [0within the bore 9 by engaging a flange I! on said container. As shown,the open end l3 of said container i 0 faces the screw-threaded end 4 ofthe body part, and the container is so positioned by said flange II thatthe mouth l3 of the container is within said bore 9 and below the upperface of the holder 8.

The holder 8 is further formed with three conduits M which open into theupper end of" said bore 9 and thus establish a connection between theopen end l3 of the container Ill and the discharge orifice 3.

Said conduits I4 are equidistantly spaced around said bore 9 and eachconduit is provided by an open-sided groove in the wall of said bore 9which is parallel with the axis of said bore. The container it is formedto fit tightly into said bore so that the wall of said container closes,when the container is inserted in said bore 9, the side of the groovewhich is open towards said bore and thus provides a part of the wall ofsuch conduit I l.

The cover member 6 is screw-threaded at l5 for connection with the bodypart I and provides a tube It the lower end I1 of which is arranged toproject into the powder container [0. The other end I 8 of said tube I6opens into a duct l9 which is arranged for connection with a deflatableair bulb 20. The tube I6 is held in said duct as by a lip or bead 2|.

An annular resilient washer 22 is secured in a groove 23 in the covermember 6 and is preferably arranged to surround the open end I3 and theopenings of the conduits l4 and to provide a powder-tight seal betweenthe cover mem her 6 and the holder 8.

The medicated powder 24 is provided in the powder container inwhich,'before use, is closed as by a resilient or other cap and whichmay contain such predetermined quantity of the powder as may beprescribed for any particular treatment.

For use, the powder container is opened and the open container isinserted, with its opening upwards, into the holder 8. The cover mem her6 is then screwed down so that the annular washer 23 forms a tight sealbetween the cover member 6 and the holder 8 and holds the lattersecurely in position in the body part 1. Operation of the deflatablebulb forces air through tube l 6 into the container l0 and such aircarries powder 24 in the direction indicated by the arrows through theconduits I4 and the discharge orifice 3 until the container I0 iscompletely emptied and substantially the whole of its contents isdeposited in the body cavity or applied to the wound or the like.

After unscrewing the cover member 5, the powder container or cartridgel0 can be removed and all parts of the device can be easily cleaned forfurther use. As a rule, the container 10 will be discarded after use.

I claim:

1. A powder projecting device comprising a body part formed with animperforate side wall of generally conical shape" suitable forintroduction into a body cavity and with a discharge opening at thesmaller end, said body part being hollow and shaped to receive a holder,the end of said body part opposite the discharge orifice being ar-'ranged forconnection with a cover member; said device further comprisinga cover member shaped for connection with said body part, and a holdersuitable to be seated within said body part; said holder having an openended recess suitable to receive a powder container or cartridge withthe open end of such cartridge below the mouth of said recess and facingaway from said discharge orifice, and also including conduits arrangedto establish a connection between the open end of such cartridge andsaid discharge orifice; said cover member having a tube which isarranged to have its one end projecting into said recess and to have itsother end connected toa deflatable bulb.

2., The device claimed in claim 1, in which the open-ended recess iscircular in cross-section and eachconduit comprises a groove which isformed in the wall of said recess and is materially parallel with theaxis of said recess, said groove being open at its side facing saidrecess,

3. A' powder projecting device comprising a hollow body closed at oneend, a discharge orifice at the other end of said body, a supportingholder within said body having a bore receiving a powder container orcartridge, one end of which cartridge is permanently closed and theother end of which is open and faces away from the discharge orifice,means in said holder forming at least one conduit for the passage ofpowder out of and reversely along said powder container or cartridge tothe discharge orifice, and means for setting up an air current carryingpowder insuspension from the container or cartridge through said conduitand out of said discharge orifice.

4. A powder projecting device comprising a body part formed at its oneend with a discharge orifice and means within said body part providingspace receiving a powder container orcartridge one end of which ispermanently closed and the other end of which is open and faces awayfrom the discharge orifice, said body part having therein means formingat least one conduit adapted for the passage of powder out of andreversely alon said powder container or cartridge to the dischargeorifice, said device also comprising a cover member, means for blowingair into the container so as to force powder in suspension in the saidair through said connection and out of said discharge orifice,- andmeans for connecting said air blowing means through said cover member. I

5. A powder projecting device comprising a body of generally conicalshape formed with an end of an uninterrupted shape suitable tor in-*troduction into a body cavity and with a discharge opening at saidlatter end, said body part having therein a means formed with a spaceREFERENCES CITED The following references are of record nitric file ofthis patent:

UNITED STATES PATENTS Number

